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通过对土壤容重、总孔隙度、含水量、田间持水量及玉米产量的测定和分析,研究一次性施肥条件下深松-旋耕、深松-免耕、常规旋耕和免耕不同耕作方式对土壤物理性状及玉米产量的影响。结果表明,不同耕作方式对土壤容重和土壤含水量的影响效果为深松-旋耕>深松-免耕>常规旋耕>免耕;对土壤持水量的影响效果为深松-免耕>常规旋耕>深松-旋耕>免耕;对玉米产量的影响效果为深松-免耕>免耕>常规旋耕>深松-旋耕,深松-免耕和免耕分别与深松旋耕和常规旋耕的产量差异达极显著水平,深松-免耕较常规旋耕增产15.68%,产量高达6 829.73 kg/hm2。
Through the measurement and analysis of soil bulk density, total porosity, water content, field water capacity and corn yield, we studied the effects of one-off fertilization on subsoiling-rotary tillage, subsoiling-no tillage, conventional tillage and no tillage Effects on Soil Physical Properties and Corn Yield. The results showed that the effects of different tillage methods on soil bulk density and soil water content were subsoiling - rotary tillage> subsoiling - no tillage> conventional tilling> no tillage; and the effect on soil water holding capacity was subsoiling - no tillage> Conventional tillage> subsoiling-tillage> no-tillage; the effects on maize yield were subsoiling-no-tillage> no-tillage> conventional tilling> subsoiling-rotary tillage, subsoiling-no tillage and no tillage respectively Compared with conventional rotary tillage, the yield of pine and non-tillage increased 15.68% and the yield reached as high as 6 829.73 kg / hm2.